package cn.tetu.boot13.controller;

import cn.tetu.boot13.entity.User;
import cn.tetu.boot13.utils.DBUtils;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import sun.security.util.Password;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

@Controller
public class UserController {
     @RequestMapping("/reg")
    @ResponseBody
    public String reg(User user){
         System.out.println("user = " + user);
//         获取数据库链接
         try (Connection conn = DBUtils.getConn();){
             String sql = "insert into user values(null,?,?,?,?)";
//             使用预编译
             PreparedStatement ps = conn.prepareStatement(sql);
             ps.setString(1,user.getUsername());
             ps.setString(2,user.getPassword());
             ps.setString(3,user.getNick());
             ps.setInt(4,user.getAge());
//             执行
             ps.executeUpdate();
         } catch (SQLException throwables) {
             throwables.printStackTrace();
         }


         return "注册成功!";
     }

     @RequestMapping("/login")
    @ResponseBody
    public String login(User user){
         System.out.println("user = " + user);

//         获取链接
         try (Connection conn = DBUtils.getConn()){
             String sql = "elect password from user where username=?";
             PreparedStatement ps = conn.prepareStatement(sql);
             ps.setString(1,user.getUsername());
//             执行查询
             ResultSet rs = ps.executeQuery();
             if (rs.next()) {
                 String password = rs.getString(1);
                 if (password.equals(user.getPassword())){
                     return "登录成功";
                 }else {
                     return "密码错误";
                 }
             }

         } catch (SQLException throwables) {
             throwables.printStackTrace();
         }

         return "用户名不存在";
     }

}
